E. K. Gustafson
A5103076844- Pulsars and Gravitational Waves Research
- Geophysics and Sensor Technology
- Geophysics and Gravity Measurements
- Astrophysical Phenomena and Observations
- Gamma-ray bursts and supernovae
- Seismic Waves and Analysis
- High-pressure geophysics and materials
- Cosmology and Gravitation Theories
- Planetary Science and Exploration
- GNSS positioning and interference
- Magnetic confinement fusion research
- Atomic and Subatomic Physics Research
- Dark Matter and Cosmic Phenomena
- Advanced Frequency and Time Standards
- Particle Accelerators and Free-Electron Lasers
- Cold Atom Physics and Bose-Einstein Condensates
- Astrophysics and Cosmic Phenomena
California Institute of Technology
2017-2023
The Laser Interferometer Gravitational Wave Observatory (LIGO) has been directly detecting gravitational waves from compact binary mergers since 2015. We report on the first use of squeezed vacuum states in direct measurement with Advanced LIGO H1 and L1 detectors. This achievement is culmination decades research to implement gravitational-wave During ongoing O3 observation run, are improving sensitivity interferometers signals above 50 Hz by up 3 dB, thereby increasing expected detection...
On April 1st, 2019, the Advanced Laser Interferometer Gravitational-Wave Observatory (aLIGO), joined by Virgo detector, began third observing run, a year-long dedicated search for gravitational radiation. The LIGO detectors have achieved higher duty cycle and greater sensitivity to waves than ever before, with Hanford achieving angle-averaged binary neutron star coalescences distance of 111 Mpc, Livingston 134 Mpc factors 74.6% 77.0% respectively. improvement in stability is result several...
Noise due to scattered light has been a frequent disturbance in the Advanced LIGO gravitational wave detectors, hindering detection of waves. The non stationary scatter noise caused by low frequency motion can be recognized as arches time-frequency plane channel. In this paper, we characterize scattering for LIGO's third observing run O3 from April, 2019 March, 2020. We find at least two different populations and investigate multiple origins one them well its mitigation. that relative...
Advanced LIGO and Virgo have detected gravitational waves from astronomical sources to open a new window on the Universe. To explore this realm requires an exquisite level of detector sensitivity, meaning that much stronger signal instrumental environmental noise must be rejected. Selected examples unwanted in are presented. The initial focus is how existence (characterized by particular frequencies or time intervals) was discovered. Then, variety methods used track down source noise, e.g.,...